I Need Your Help

I'm in the process of planning a new training program which would help you to break through in your organ playing and I want it to be exactly what you need to achieve success in your practice.

Therefore I need your help:
Out of these 5 topics which one is the single biggest area that is holding you back from achieving success you desire in organ playing?

Is it Organ Technique (meaning that you can't achieve proper articulation, hand and feet coordination, finger and foot substitution, pedal preparation, glissando, proper pedaling and all the other technical issues about organ playing)?

Is it Organ Repertoire (meaning you can't play the notes of your specific pieces with enough precision and clarity with your fingers and your feet, you struggle with performance practice issues, ornaments, writing in fingerings and pedalings, analyzing your pieces etc.)?

Is it Sight-Reading (meaning that you can't play unfamiliar organ music at sight with precision and clarity in a manner that would seem like ready for a public performance)?

Is it Organ Registration (meaning that don't know the principles behind the rules which stops and their combinations to use in registering your organ pieces of various historical periods and national schools)?

Is it Organ Practice (meaning that you can't seem to make enough progress in your daily efforts to play the organ or you don't know the most efficient ways to learn and memorize your pieces)?

Thanks in advance,
Vidas
P.S. Just push the reply button to send me your answer.